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66131_Ludwig_CH11A 5/30/2001 4:49 PM Page 315

Refrigeration Systems 315

Table 11-3B (continued)
Refrigerant Data and Safety Classifications
Normal
Refrigerant Chemical Chemical Molecular Boiling Point a Safety
o
o
Number Name a,b Formula a Mass a ( C) ( F) Group
Propane Series
216ca 1,3-dichloro-1,1,2,2,3,3-hexafluoropropane CClF 2 CF 2 CClF 2 221.0 36 97
218 octafluoropropane CF 3 CF 2 CF 3 188.0 37 35 A1
245cb 1,1,1,2,2-pentafluoropropane CF 3 CF 2 CH 3 134.0 18 0
290 propane CH 3 CH 2 CH 3 44.0 42 44 A3
Cyclic Organic Compounds
C316 1,2-dichloro-1,2,3,3,4,4-hexafluorocyclobutane C 4 Cl 2 F 6 233.3 60 100
C317 chloroheptafluorocyclobutane C 4 ClF 7 216.5 26 79
C318 octafluorocyclobutane C 4 F 8 200.0 6 21 A1
See Table 2 for Blends
Miscellaneous Organic Compounds
Hydrocarbons
600 butane CH 3 CH 2 CH 2 CH 3 58.1 0 31 A3
600a 2-methyl propane (isobutane) CH(CH 3 ) 3 58.1 12 11 A3
Oxygen Compounds
610 ethyl ether C 2 H 5 OC 2 H 5 74.1 35 94
611 methyl formate HCOOCH 3 60.0 32 89 B2
Sulfur Compounds
620 (Reserved for future assignment)
Nitrogen Compounds
630 methyl amine CH 3 NH 2 31.1 7 20
631 ethyl amine C 2 H 5 NH 2 45.1 17 62
Inorganic Compounds
702 hydrogen H 2 2.0 253 423 A3
704 helium He 4.0 269 452 A1
717 ammonia NH 3 17.0 33 28 B2
718 water H 2 O 18.0 100 212 A1
720 neon Ne 20.2 246 411 A1
728 nitrogen N 2 28.1 196 320 A1
732 oxygen O 2 32.0 183 297
740 argon Ar 39.9 186 303 A1
744 carbon dioxide CO 2 44.0 78* 109* A1
744A nitrous oxide N 2 O 44.0 90 129
764 sulfur dioxide SO 2 64.1 10 14 B1
Unsaturated Organic Compounds
1112a 1,1-dichloro-2,2-difluoroethene CCl 2 CF 2 133.0 19 66
1113 1-chloro-1,2,2-trifluoroethene CClF CF 2 116.5 28 18
1114 tetrafluoroethene CF 2 CF 2 100.0 76 105
1120 trichloroethene CHCl CCl 2 131.4 87 189
1130 1,2-dichloroethene (trans) CHCl CHCl 96.9 48 118
1132a 1,1-difluoroethene (vinylidene fluoride) CF 2 CH 2 64.0 82 116
1140 1-chloroethene (vinyl chloride) CHCl CH 2 62.5 14 7 B3
1141 1-fluoroethene (vinyl fluoride) CHF CH 2 46.0 72 98
1150 ethene (ethylene) CH 2 CH 2 28.1 104 155 A3
1270 propene (propylene) CH 3 CH CH 2 42.1 48 54 A3
a The chemical name, chemical formula, molecular mass, and normal boiling point are not part of this standard.
b The preferred chemical name is followed by the popular name in parentheses.
c Unclassified refrigerants indicate either insufficient data to classify or no formal request for classification.
d Toxicity classification is based on recommended exposure limits provided by chemical suppliers. This rating is provisional and will be reviewed when
toxicological testing is completed.
e Sublimes.